Single-player games like NULL SECTOR: LAST PROTOCOL
Below are 8 single-player Steam games similar to NULL SECTOR: LAST PROTOCOL, ranked by player overlap. Every pick carries Steam's Single-player category, so multiplayer-only titles or always-online games don't sneak in. imho.run pulls the category data from Steam directly — Single-player here matches what the store labels.
Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like NULL SECTOR: LAST PROTOCOL page.
Ranked picks
- 1
Number 8
Single-player alternative to NULL SECTOR: LAST PROTOCOL — playable solo, no multiplayer required. Shares Action and Indie with NULL SECTOR: LAST PROTOCOL.
SciFi shooter with first-person and third-person views, as well as adventure and story elements. In the game's world, you will face many dangers. Armed creatures resembling humans, drones, robots, and security systems will all try to destroy you.
- 2
After Silence
Single-player alternative to NULL SECTOR: LAST PROTOCOL — playable solo, no multiplayer required. Shares Action and Indie with NULL SECTOR: LAST PROTOCOL.
A third-person survival horror blending visceral tactical combat with a deeply personal narrative. Infiltrate Black Protocol's ruins, uncover the truth about Compound Z, and fight through a dying city. A mother's love becomes the most dangerous weapon in a world that forgot mercy.
- 3
Roten
Single-player alternative to NULL SECTOR: LAST PROTOCOL — playable solo, no multiplayer required. Shares Action and Indie with NULL SECTOR: LAST PROTOCOL.
ROTEN is an open-world survival experience set in a world slowly reclaimed by decay. Explore abandoned places, where silent points of interest hide fragments of forgotten stories, face the infected, and survive in a quiet, hostile environment.
- 4
Esoteric: Apostate
Single-player alternative to NULL SECTOR: LAST PROTOCOL — playable solo, no multiplayer required. Shares Action and Indie with NULL SECTOR: LAST PROTOCOL.
Embody the enhanced cybernetic might of the future. Scan your surroundings, gather powerful weapons and supplies, and obliterate the techno-zealots of the Church of Hope. Protect the girl in an intense third-person stealth-action experience designed for solo play.
- 5
HKO: Advanced Survival
Single-player alternative to NULL SECTOR: LAST PROTOCOL — playable solo, no multiplayer required. Shares Action and Indie with NULL SECTOR: LAST PROTOCOL.
An open-world survival experience that combines exploration, suspense, resource management, tactical combat, and cooperative multiplayer. Explore dangerous islands, customize weapons, survive against the Penitents and escape with friends in The Phantom Runner experience.
- 6
Never Be Alone
Single-player alternative to NULL SECTOR: LAST PROTOCOL — playable solo, no multiplayer required. Shares Action and Indie with NULL SECTOR: LAST PROTOCOL.
Never Be Alone is an open-world zombie survival game for solo play and seamless co-op. Explore a world reclaimed by nature, protect a fragile safezone, and uncover the truth behind your forgotten past 10 years after the outbreak.
- 7
VAPORPUNK
Single-player alternative to NULL SECTOR: LAST PROTOCOL — playable solo, no multiplayer required. Shares Action and Indie with NULL SECTOR: LAST PROTOCOL.
VAPORPUNK is an open world journey through a alternate future influenced by aesthetics and music.
- 8
Titan Force
Single-player alternative to NULL SECTOR: LAST PROTOCOL — playable solo, no multiplayer required. Shares Action and Adventure with NULL SECTOR: LAST PROTOCOL.
When a failed experiment unleashes a plague of the undead, civilization collapses overnight. Cities fall. But humanity has one last weapon: the Titans. Climb into the cockpit. Reactivate a war machine from a forgotten age. Turn extinction into vengeance.